![](http://www.alamy.com/thumbs/6/855D19FE-3A34-41B7-A1B7-CBAD3373F482/E09XJT.jpg)
Isolated blackboard with periodic table Osmium Chemistry
Size: 5184px × 3456px
Photo credit: © Micha Klootwijk / Alamy / Afripics
License: Royalty Free
Model Released: No
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